Yes, vinegar is a natural weed killer product. Since the vinegar has an acidic content (acetic acid), which gives the effective results in controlling the weeds. If we use vinegar with high concentration of acetic acid over the weeds, yields the good results. It is a safe, easy and inexpensive way of removing the weeds. Since, vinegar is also non-selective, we have to be aware during the spray. You can also make use of the website https://weedkillerguide.com which is a best source of weed killer products.